#include <bits/stdc++.h>
using namespace std;
int a[100010],h[100010],tmp;
int main(){
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    int n;cin>>n;
    for(int i=1;i<=n;i++){
        cin>>a[i];
        h[a[i]]++;
    }
    sort(a+1,a+n+1);
    n=unique(a+1,a+n+1)-a-1;
    for(int i=1;i<=n;i++)
        if(h[a[i]]>=tmp)tmp=h[a[i]];
    cout<<tmp;
    return 0;
}